The former president had this to say: "I kind of like seeing Barack and Hillary fight. They're flesh-and-blood people and they have their differences – let' em at it."

But not everyone thinks it's becoming. Several top Democrats are concerned that the gutter politics will end up harming the party's image ahead of the general election.

Senator John Kerry, an Obama backer, wrote in an e-mail to supporters saying: "The truth matters, but how you fight the lies matters even more." Kerry doesn't mention Clinton by name, but says they're fighting back against anonymous e-mails questioning Obama's Christian faith.

Former Senate Majority Leader Tom Daschle, another Obama backer, says attacks coming from the Clintons are similar to what he's seen from Republicans and called comments about Obama from former President Clinton "distortions”. Daschle says such bickering ultimately destroys the party and that it will have a "huge lasting effect down the road... if it doesn't stop soon."

On the other hand, Democratic strategist Donna Brazile thinks this "generational fight" will make the party stronger in the end.

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